CN100523485C - Slurry turbine alternating current generator - Google Patents
Slurry turbine alternating current generator Download PDFInfo
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- CN100523485C CN100523485C CNB2007100526750A CN200710052675A CN100523485C CN 100523485 C CN100523485 C CN 100523485C CN B2007100526750 A CNB2007100526750 A CN B2007100526750A CN 200710052675 A CN200710052675 A CN 200710052675A CN 100523485 C CN100523485 C CN 100523485C
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- magnet rotor
- generator
- turboalternator
- magnetic coupling
- turbine
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Abstract
The invention relates to a mud turbo alternator, which is used for providing power supply for the drilling instruments in the mine and comprises a turbine, a turboshaft, a sliding bearing, a magnetic coupling outer magnet rotor, a shielding case, a magnetic coupling inner magnet rotor, a generator and a case; A guide pulley for guiding the mud is arranged above the turbine; the inner magnet rotor is arranged in the upper part of the magnetic coupling outer magnet rotor and is coaxially connected with the generator; the shielding case is arranged between the outer magnet rotor and the inner magnet rotor; A standby high-temperature battery which is used when the generator is in failure or the pump is stopped is arranged in the upper air cavity inside the case. The invention has the advantages that the device is the complete non-contact power transference, the complete static seal, the seal is safe and reliable, the hydraulic vibration is small, the pressure is even, the hydraulic performance of the worm wheel is good; additionally, the mud turbo alternator is provided with a standby battery, therefore,, the operation is stable and reliable, the service life of the generator is long and the technology capability is good and the cost is low.
Description
Technical field
The present invention relates to a kind of down-hole slurry Turboalternator, belong to technical field of generators, is the supplementary equipment of subsurface boring equipment in the petroleum drilling engineering, is used to the down-hole to provide power supply with boring instrument.
Background technique
Along with geosteering technology, logging while drilling technology and the closed loop drilling technology widespread usage at oilfield development process, the energy supply of down-hole measurement and control instrument system requirements abundance is as assurance.1), adopt lithium battery power supply at present, the technological scheme of the power supply of drilling well industry wireless drilling measurer has:, but rely on lithium cell to have more shortcoming fully, its energy and temperature range are limited, and poor stability pollutes environment, the user cost height.2), the power supply of employing down-hole slurry generator, it is by turbine, rotor, stator, live axle, the down-hole slurry generator that speed changer etc. are formed, the hard connection of its transmission adopted machinery, movable sealing structure, wash away down in the high speed of sand laden mud, the service condition of rotary seal structure is very limited: 3), on the basis of above-mentioned existing down-hole slurry generator technology, make a kind of mud turbine generator into, it is that machinery is connected firmly, in movable sealing structure changes into, adding shielding can in the middle of the outer magnet rotor connects, become static seal structure, patent publication No. is CN1865693A, name is called: down-hole slurry generator is exactly this class formation, overcome mechanical hard connection, the movable sealing structure shortcoming, but still become in following shortcoming:
1, the existence of gearbox makes the manufacturing process complexity, for example: enter gearbox for preventing mud, just there is technology difficulty in sealing, under the washing away of high speed mud, any motive sealing all can involve the problem of a durability, if can not realize real contactless transmission of power, just lost the meaning of using the magnetic force coupling with magnetic coupling.More original downhole generator, always partly use rotary dynamic seal at speed changer or other mechanical shaft couplings, even the motive sealing parts are steeped in oil, adopt the hydro-cushion technology, the life-span at sealing position still can be subjected to very big influence: under the washing away of high speed sand laden mud, the sealed member of motive sealing is in continuous operation after tens hours, or may will damage in the shorter time, and the use of whole generating machine is caused adverse effect.
In a word, existing patent publication No. is that CN1865693A, name are called: down-hole slurry generator, owing to be not completely free of motive sealing, increased rate of breakdown, influence life of equipment, reduced the reliability and stability of equipment, also increased the manufacturing and the operating cost of equipment simultaneously:
2, worm gear is because of cavitation erosion and because of the bad hydraulic vibration that causes of import fluidised form, and pressure is inhomogeneous, vibrates greatlyyer, and the cavitation erosion and the hydraulic performance of worm gear are relatively poor:
3, when any fault or termination of pumping take place in generator system, all will cause to have a power failure and the instrument communication state is changed, also can cause in service and the canned data loss of data.
Summary of the invention:
The objective of the invention is to overcome the shortcoming that prior art exists, a kind of down-hole slurry Turboalternator is provided, be used for the oil drilling industry, be the power supply of wireless drilling system.Described generator is complete contactless transmission of power, static seal completely, both eliminated because the influence that mechanical eccentric caused, realize that again zero reveals, sealingly secure is reliable, hydraulic vibration is little, pressure is even, the gas of worm gear is turbid and hydraulic performance is good, prolong the working life of generator to the full extent, good manufacturability, the slurry turbine alternating current generator that cost is low: also have a purpose to be: thus it is reliable to have a reserve battery working stability, guarantee promptly that when any fault or slurry pump termination of pumping take place generator system the in service and canned data data of instrument can not lost.
Technological scheme of the present invention is: a kind of down-hole slurry Turboalternator, comprise magnet rotor, generator and shell in turbine, turbine shaft, bearing, the outer magnet rotor of magnetic coupling, shielding can, the magnetic coupling, it is characterized in that: the lower end endoporus of shell is equipped with the bearing of supporting turbine shaft, this bearing is a sliding bearing: a turbine is fixed in the lower end of turbine shaft, and the outer magnet rotor of a magnetic coupling is fixed in the upper end: the guide wheel of a guiding mud is arranged at the top of turbine; Interior magnet rotor is positioned among the outer magnet rotor top of magnetic coupling, and links to each other with generator coaxle: between outer magnet rotor and the interior magnet rotor shielding can that seals is arranged; Be equipped with in the described shell upper air cavity inside and be used for that generator breaks down or standby high-temperature battery during termination of pumping.
The further technological scheme that has additional technical feature on the technique scheme basis is:
Described down-hole slurry Turboalternator, its guide wheel is the blade type guide wheel, is socketed in the outside of shell lower end.
Described down-hole slurry Turboalternator, its guide wheel and shell lower end are fixedly sleeved.
Described down-hole slurry Turboalternator, its guide vane is 3-6.
Described down-hole slurry Turboalternator, its guide vane are 5.
Described down-hole slurry Turboalternator, its high-temperature battery are the high temperature lithium ion battery, and voltage is 36-56V, and capacity is 220-300Ah.
Described down-hole slurry Turboalternator, its high-temperature battery voltage is 48V, capacity is 240Ah.
Described down-hole slurry Turboalternator is equipped with rectification modulation device and electric controller in its shell upper air cavity inside: described rectification modulation device comprises modulation circuit, and electric controller comprises control circuit.
The technique effect of down-hole slurry Turboalternator of the present invention is:
1, transmission of power realizes non contact transmission, and whole generating machine moving element does not have motive sealing, and magnetic coupling has been realized the conversion of motive sealing to static seal, has greatly prolonged the working life of generator:
2, owing to use the mud guide wheel, thereby: 1), guarantee all even stability and the flow velocity and the flow direction of inlet fluid-mud, import and outlet all become axial force, reduce and impact, and can set upright instrument, and improve generator efficiency, under high rotating speed, reduce The Effect of Inertia Force; 2), utilize front guide impeller to eliminate or to alleviate turbine gas turbid and because of the bad hydraulic vibration that causes of import fluidised form, after loading onto guide wheel, the pressure of turbine inlet becomes evenly, and vibration reduces, the gas of turbine is turbid to have had comprehensive improvement with hydraulic performance, and generator work is also more reliable;
3, adopted standby high-temperature battery, promptly, guaranteed that the power supply supply is not interrupted when termination of pumping with continuous uninterruptable power source power supply.With boring instrument and geosteering instrument, must guarantee that when underground work power supply can not interrupt, otherwise, information such as the variation of instrument communication state and storage all can be lost, and in drilling process, therefore necessary termination of pumping when making a trip and down-hole accident occurs must give the inner outfit of generator small capacity down-hole high-temperature battery, behind turn on pump, control circuit is responsible for the power supply supply is switched on the generator;
4, further technique effect is: the rectification modulation device is a regulator rectifier circuit, be that Ac with the variation of generator output converts galvanic current output to: electric controller comprises control circuit, controlling object comprises the communication interface of Communication Control and the generator mechanical part and the electronic circuit section of generator and ground system, and the switching of down-hole high-temperature battery and generator power supply.
Description of drawings
Fig. 1 is a kind of down-hole slurry Turboalternator internal structure sketch of the present invention:
Fig. 2 is the transverse section A-A cut-away enlarged view at guide wheel place among Fig. 1:
Fig. 3 is the Guiding wheel structure sketch.
The member name of corresponding figure number is called among the figure: 1-turbine, 2-turbine shaft, 3-guide wheel, 3 '-guide vane, 4-bearing, the outer magnet rotor of 5-magnetic coupling, magnet rotor in the 6-shielding can, 7-magnetic coupling, 8-generator, 9-shell, 10-rectification modulation device, 11-high-temperature battery, 12-electric controller, 13-air cavity, 14-mud runner, 15-drill collar.
Embodiment
It is as follows that the invention will be further described in conjunction with the accompanying drawings and embodiments:
As shown in Figure 1, 2, 3, be an embodiment of down-hole slurry Turboalternator: it has magnet rotor 7, generator 8 and shell 9 in a turbine 1, turbine shaft 2, bearing 4, the outer magnet rotor 5 of magnetic coupling, shielding can 6, the magnetic coupling; The lower end endoporus of described shell 9 is equipped with the bearing 4 of supporting turbine shaft 2, and this bearing 4 is a sliding bearing; A turbine 1 is fixed in the lower end of turbine shaft 2, and the outer magnet rotor 5 of a magnetic coupling is fixed in the upper end; The guide wheel 3 of one guiding mud is arranged at the top of turbine 1; Interior magnet rotor 7 is positioned among outer magnet rotor 5 tops of magnetic coupling, and with 8 coaxial linking to each other of generator; The shielding can 6 that seals is arranged between outer magnet rotor 5 and the interior magnet rotor 7; Be equipped with in described shell 9 upper air cavity inside 13 and be used for that generator breaks down or standby high-temperature battery 11 during termination of pumping; Described guide wheel 3 is the blade type guide wheel, fixedly sleeved outside in shell 9 lower ends; Guide wheel 3 its blades are 3-6, present embodiment blade as shown in Figure 2 is 5, elect 3 blades as or 6 blades are additional embodiments: described high-temperature battery 11 is the high temperature lithium ion battery, voltage is 36-56V, capacity is 220-300Ah, it is 48V that present embodiment is elected voltage as, and capacity is 240Ah; Voltage also can be 36V, can also elect 56V as, and is complementary with electrical equipment, and capacity is selected as required; Rectification modulation device 10 and electric controller 12 are installed in shell 9 upper air cavity inside 13: described rectification modulation device 10 comprises modulation circuit, and electric controller 12 comprises control circuit.
The working procedure of down-hole slurry Turboalternator of the present invention is: generator 8 output ACs electricity is converted to direct current through rectification modulation device 10.During generator 8 work, mud via guide wheel 3 following currents after, wash away turbine 1 and drive turbine shaft 2 rotations, turbine shaft 2 drives outer magnet rotor 5 rotations of magnetic coupling, by the magnetic force coupling, will rotatablely move is delivered to magnet rotor 7 in the magnetic coupling, realizes non contact transmission power, magnet rotor 7 drives the rotation of generator 8 rotors in the magnetic coupling, thus the cutting magnetic line generating.Electric current outputs to the rectifying and pressure-regulating loop of rectification modulation device 10, after treatment, the output burning voltage provides power supply for the downhole instrument system by electric controller 12: during termination of pumping or during the generator cisco unity malfunction, standby high-temperature battery 11 is powered to downhole instrument.
Protection domain of the present invention is not limited to the foregoing description.
Claims (7)
1, a kind of down-hole slurry Turboalternator, comprise magnet rotor (7), generator (8) and shell (9) in turbine (1), turbine shaft (2), bearing (4), the outer magnet rotor (5) of magnetic coupling, shielding can (6), the magnetic coupling, it is characterized in that: the lower end endoporus of shell (9) is equipped with the bearing (4) of supporting turbine shaft (2), and this bearing is a sliding bearing; A turbine (1) is fixed in the lower end of turbine shaft (2), and the outer magnet rotor (5) of a magnetic coupling is fixed in the upper end; The guide wheel (3) of one guiding mud is arranged at the top of turbine (1); Interior magnet rotor (7) is positioned among outer magnet rotor (5) top of magnetic coupling, and with coaxial linking to each other of generator (8); The shielding can (6) that seals is arranged between outer magnet rotor (5) and the interior magnet rotor (7); Be equipped with in described shell (9) upper air cavity inside (13) and be used for that generator breaks down or standby high-temperature battery (11) during termination of pumping.
2, down-hole slurry Turboalternator according to claim 1 is characterized in that: described guide wheel (3) is the blade type guide wheel, is socketed in the outside of shell (9) lower end.
3, down-hole slurry Turboalternator according to claim 1 and 2 is characterized in that: described guide wheel (3) is fixedly sleeved with shell (9) lower end.
4 down-hole slurry Turboalternators according to claim 1 and 2 is characterized in that: its blade of described guide wheel (3) is 3-6.
5, down-hole slurry Turboalternator according to claim 4 is characterized in that: its blade of described guide wheel (3) is 5.
6, down-hole slurry Turboalternator according to claim 1 is characterized in that: described high-temperature battery (11) is the high temperature lithium ion battery, and voltage is 36-56V, and capacity is 220-300Ah.
7, down-hole slurry Turboalternator according to claim 6 is characterized in that: described high-temperature battery (11) voltage is 48V, and capacity is 240Ah.
8, down-hole slurry Turboalternator according to claim 1 is characterized in that: rectification modulation device (10) and electric controller (12) are installed in described shell (9) upper air cavity inside (13); Described rectification modulation device (10) comprises modulation circuit, and electric controller (12) comprises control circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007100526750A CN100523485C (en) | 2007-07-10 | 2007-07-10 | Slurry turbine alternating current generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007100526750A CN100523485C (en) | 2007-07-10 | 2007-07-10 | Slurry turbine alternating current generator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101126366A CN101126366A (en) | 2008-02-20 |
| CN100523485C true CN100523485C (en) | 2009-08-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2007100526750A Expired - Fee Related CN100523485C (en) | 2007-07-10 | 2007-07-10 | Slurry turbine alternating current generator |
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| Country | Link |
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| CN (1) | CN100523485C (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102158011A (en) * | 2011-02-18 | 2011-08-17 | 中国海洋石油总公司 | Power supply device for guide well drilling tool |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101982654B (en) * | 2010-11-05 | 2012-01-25 | 北京天形精钻科技开发有限公司 | Petroleum drilling mud generating system |
| CN102082530B (en) * | 2011-02-19 | 2012-12-26 | 北京天形精钻科技开发有限公司 | Magnetic suspension underground generator |
| CN102192074A (en) * | 2011-04-13 | 2011-09-21 | 华中科技大学 | Mud turbine for underground power supply |
| CN102953912B (en) | 2011-08-30 | 2015-05-13 | 中国石油化工股份有限公司 | Rotating magnetic field type underground generating set |
| CN102410235B (en) * | 2011-11-30 | 2014-06-04 | 苏宇贵 | Refrigerating plant |
| CN102635486B (en) * | 2012-04-27 | 2014-04-30 | 中国石油集团西部钻探工程有限公司 | Turbine driven downhole slurry generator |
| CN105134459B (en) * | 2015-08-10 | 2017-05-10 | 宝鸡石油机械有限责任公司 | Mud turbine generator of automatic vertical drilling tool |
-
2007
- 2007-07-10 CN CNB2007100526750A patent/CN100523485C/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102158011A (en) * | 2011-02-18 | 2011-08-17 | 中国海洋石油总公司 | Power supply device for guide well drilling tool |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101126366A (en) | 2008-02-20 |
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